<template>
    <template v-if="visible">
        <Teleport to="body">
            <div class="gulu-dialog-overlay" @click="onClickOverlay"></div>
            <div class="gulu-dialog-wrapper">
                <div class="gulu-dialog">
                    <header><slot name="title" />
                    <span class="gulu-dialog-close" @click="close"></span>
                    </header>
                    <main>
                        <slot name="content" />
                    </main>
                    <footer>
                        <Button @click="ok">OK</Button>
                        <Button @click="cancel">Cancel</Button>
                    </footer>
                </div>     
            </div>
        </Teleport>
    </template>
</template>
<script lang="ts">
import Button from './Button.vue'
export default {
    props:{
        title:{
            type:String,
            default:'提示'
        },
        visible:{
            type:Boolean,
            default:false
        },
        closeOnClickOverlay:{
            type:Boolean,
            default:true
        },
        ok:{
            type:Function
        },
        cancel:{
            type:Function
        }
    },
    components:{Button},
    setup(props,context){
        const close=()=>{
            context.emit('update:visible',false)
        }
        const onClickOverlay=()=>{
            if(props.closeOnClickOverlay){
                close()
            }
        }
        const ok=()=>{
            // if(props.ok && props.ok()!=false){
            if(props.ok?.()!=false){
                close()
            }
        }
        const cancel=()=>{
            // context.emit('cancel')
            //props.cancel && props.cancel()
            props.cancel?.()
            close()
        }
        return {close,onClickOverlay,ok,cancel}
    }
}
</script>
<style lang="scss">
$radius: 4px;
$border-color: #d9d9d9;
.gulu-dialog {
  background: white;
  border-radius: $radius;
  box-shadow: 0 0 3px fade_out(black, 0.5);
  min-width: 15em;
  max-width: 90%;
  &-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: fade_out(black, 0.5);
    z-index: 10;
  }
  &-wrapper {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 11;
  }
  >header {
    padding: 12px 16px;
    border-bottom: 1px solid $border-color;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 20px;
  }
  >main {
    padding: 12px 16px;
  }
  >footer {
    border-top: 1px solid $border-color;
    padding: 12px 16px;
    text-align: right;
  }
  &-close {
    position: relative;
    display: inline-block;
    width: 16px;
    height: 16px;
    cursor: pointer;
    &::before,
    &::after {
      content: '';
      position: absolute;
      height: 1px;
      background: black;
      width: 100%;
      top: 50%;
      left: 50%;
    }
    &::before {
      transform: translate(-50%, -50%) rotate(-45deg);
    }
    &::after {
      transform: translate(-50%, -50%) rotate(45deg);
    }
  }
  .gulu-dialog-close{
      cursor: pointer;
  }
}
</style>